Please carefully check your original battery to ensure that the model number is B21N1818-4, and battery voltage, battery shape, battery connector position, and screw hole locations match our battery shown below.
| Battery Code: | NAUB21N181832WHB4-4TYPES |
| Battery Name: | B21N1818-4 battery |
| Battery Type: | Li-Polymer |
| Battery Volt: | 7.6V |
| Battery Capacity: | 32.00Wh |
| Battery Color: | Black |
| Battery Cells: | Grade A, 4 Cells |
| Battery Condition: | Brand New, Replacement Battery, 1 Year Warranty |
| Compatible Battery Models: | [ B21N1818 ], [ B21N1818-1 ], [ B21N1818-2 ], [ B21N1818-3 ], [ B21N1818-4 ], |
Note: B21N1818 have 4 types. Need tell us your original battery type.